CVE-2019-17240
bl-kernel/security.class.php in Bludit 3.9.2 allows attackers to bypass a brute-force protection...
bl-kernel/security.class.php in Bludit 3.9.2 allows attackers to bypass a brute-force protection mechanism by using many different forged X-Forwarded-For or Client-IP HTTP headers.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
bl-kernel/security.class.php in Bludit 3.9.2 allows attackers to bypass a brute-force protection mechanism by using many different forged X-Forwarded-For or Client-IP HTTP headers.
- Record
CVE-2019-17240- CVSS 3.0
- 3.7 Low
CVSS:3.0/AC:H/AV:N/A:N/C:L/I:N/PR:N/S:U/UI:N - Updated
- 2026-11-02
EUVDEUVD-2019-7656
bl-kernel/security.class.php in Bludit 3.9.2 allows attackers to bypass a brute-force protection mechanism by using many different forged X-Forwarded-For or Client-IP HTTP headers.
- Record
EUVD-2019-7656- CVSS 3.0
- 3.7 Low
CVSS:3.0/AC:H/AV:N/A:N/C:L/I:N/PR:N/S:U/UI:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9pgc-3hv6-jch2
bl-kernel/security.class.php in Bludit 3.9.2 allows attackers to bypass a brute-force protection...
bl-kernel/security.class.php in Bludit 3.9.2 allows attackers to bypass a brute-force protection mechanism by using many different forged X-Forwarded-For or Client-IP HTTP headers.
- Record
GHSA-9pgc-3hv6-jch2- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-307
- Updated
- 2026-11-02
NVD
bl-kernel/security.class.php in Bludit 3.9.2 allows attackers to bypass a brute-force protection mechanism by using many different forged X-Forwarded-For or Client-IP HTTP headers.
- Record
CVE-2019-17240- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 3.0
- 3.7 Low
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:P/I:N/A:N - Weakness
- CWE-307
- Updated
- 2026-11-02
OSV
bl-kernel/security.class.php in Bludit 3.9.2 allows attackers to bypass a brute-force protection mechanism by using many different forged X-Forwarded-For or Client-IP HTTP headers.
- Record
CVE-2019-17240- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Bludit 3.9.2 - Authentication Bruteforce Mitigation Bypass | 2020-08-17 |
| Exploit-DB | Bludit 3.9.2 - Auth Bruteforce Bypass | 2020-10-23 |
| PoC in GitHub | 0xDTC/Bludit-3.9.2-Auth-Bruteforce-Bypass-CVE-2019-17240 | 2025-01-11 |
| PoC in GitHub | ColdFusionX/CVE-2019-17240_Bludit-BF-Bypass | 2020-10-21 |
| PoC in GitHub | LucaReggiannini/Bludit-3-9-2-bb | 2020-06-24 |
| PoC in GitHub | brunosergi/bloodit | 2021-06-07 |
| PoC in GitHub | jayngng/bludit-CVE-2019-17240 | 2021-03-22 |
| PoC in GitHub | mind2hex/CVE-2019-17240-Bludit-3.9.2-Auth-Bruteforce-Bypass | 2024-03-28 |
| PoC in GitHub | pingport80/CVE-2019-17240 | 2020-06-08 |
| PoC in GitHub | spyx/cve-2019-17240 | 2021-06-15 |
| PoC in GitHub | triple-octopus/Bludit-CVE-2019-17240-Fork | 2020-07-28 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-17240 is a low vulnerability (CVSS 3.7) in Bludit, published October 6, 2019. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 40.7%, the 98th percentile. No source names a fixed version.
References
rastating.github.io/bludit-brute-force-mitigation-bypass
github.com/bludit/bludit/pull/1090
packetstormsecurity.com/files/158875/Bludit-3.9.2-Authentication-Bruteforce-Mitigation-Bypass.html
nvd.nist.gov/vuln/detail/CVE-2019-17240